Keep all overlay information during image acquisition when using the base IMAQ package

[Jimmy01]

I have made an X control from the IMAQ image display control that has the ability to overlay points and lines on an image but when I put my X control into my image acquisition loop the overlay information disappears  with every new image I acquire.

How can I keep the overlay in place and just update the control with the new image and not overwrite the overlay data? I have tried the merge overlay function but this does not seem to work.

Thanks.

[BruceAmmons · Accepted solution]

Overlays normally are erased when you acquire a new image.  You could create the overlays on a separate image, then copy the overlays to each new image before you display it.  The other option is to recreate the overlays for each new image.

Bruce

[Jimmy01]

Ok thanks looks like I will create the overlays each time inside the Xcontrol so.

Thanks!